character: Earthworm Anatomy and Function
topic: Understanding the physical structure and role of earthworms in their habitat.
grade: 9
subject: Chemistry
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character: Soil Health Advocate
topic: The importance of earthworms in maintaining soil fertility and structure.
grade: 9
subject: Chemistry
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character: Ecosystem Engineer
topic: How earthworms contribute to nutrient cycling and ecosystem dynamics.
grade: 9
subject: Chemistry
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character: Environmental Chemist
topic: The chemical processes involved in soil health influenced by earthworm activity.
grade: 9
subject: Chemistry
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